Rapid Determination of Calcium, Iron, and Zinc in Gluconate Oral Solutions by Solution Cathode Glow Discharge - Atomic Emission Spectroscopy (SCGD-AES)
文献类型： 外文期刊
作者： Zheng, Peichao 1 ; Yan, Nantian 1 ; Wang, Jinmei 1 ; Fei, Guoxing 1 ; Qazi, Hafiz Imran Ahmad 1 ; Li, Biao 1 ; Tian, Hongwu 2 ; Dong, Daming 2 ; Guo, Lianbo 4 ;
作者机构： 1.Chongqing Univ Posts & Telecommun, Coll Optoelect Engn, Chongqing Municipal Level Key Lab Photoelect Infor, Chongqing, Peoples R China
2.Beijing Acad Agr & Forestry Sci, Res Ctr Intelligent Equipment, Beijing, Peoples R China
3.Minist Agr & Rural Affairs, Key Lab Agr Sensors, Beijing, Peoples R China
4.Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan, Hubei, Peoples R China
关键词： Elemental analysis; gluconate oral solutions; solution cathode glow discharge - atomic emission spectroscopy (SCGD-AES)
期刊名称：ANALYTICAL LETTERS （ 影响因子：1.6； 五年影响因子：1.9 ）
ISSN： 0003-2719
年卷期： 2024 年
页码：
收录情况： SCI
摘要： A novel solution cathode glow discharge atomic emission spectroscopy (SCGD-AES) system coupled with simplified sample preparation was developed for determining Ca, Fe, and Zn in gluconate oral solution. The preparation of the oral solution only involves diluting 1 g of the sample 100-fold and acidification with HNO3 to a concentration of 0.1 mol L-1. The preparation of each solution requires less than 5 min. Five oral solutions containing Ca, Fe, and Zn were analyzed. The results indicate that the optimal parameters are HNO3 of pH 1.0 as the electrolyte, a sample flow rate of 2.05 mL min-1, and a discharge current of 65 mA. The detection limits (DLs) of Ca, Fe, and Zn were 58.64, 64.29, and 15.92 mu g L-1. The analyses by SCGD-AES for Ca, Fe, and Zn using direct dilution are in agreement with the values by ICP-OES and SCGD-AES with digestion. A t-test was conducted on the oral liquid samples, revealing that the majority of the obtained p-values exceeded .05. In addition, SCGD-AES reduces the time, energy, and quantity of concentrated HNO3 compared with previous studies, and the measurement time of each oral liquid sample was less than 2 min. These findings demonstrate the use of SCGD-AES as an expedited and dependable method for the determination of trace elements in health food products.
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